英语：Unit 2《The Environment》
教案-welcome（译林牛津版必修5）
Teaching aims and demands:
Make students know the importance of the environment to the human beings .
To show students the current situation of environment .
To arouse students’ sense of environment protection.
To learn some words in this lesson
Teaching procedures :
Step 1 : Brainstorming
1 Review the word ‘environment’ and let them imagine the adjectives related to environment .
Write the words on the blackboard : Harmony, peaceful, destructive , pollution, disaster , protection, environmentalists.
2 Ask students to express their opinions freely by asking them questions below:
1) Compared to the last few years , do you think the environment is getting better or worse ?
2) What might be the reasons for the changes?
Step 2 : Sharing information
